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Finding the Fourth Proportional to 512.02, 766.99 and 433.59

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Solution

The fourth proportional to 512.02, 766.99 and 433.59 is: 649.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    512.02 : 766.99 = 433.59 : x
  2. Step 2: Convert to fraction form
    512.02/766.99 = 433.59/x
  3. Step 3: Cross multiply
    512.02x = 766.99 × 433.59
  4. Step 4: Simplify right side
    512.02x = 332,559.19
  5. Step 5: Solve for x
    x = 332,559.19/512.02
  6. Step 6: Final answer
    x = 649.50

Related Problems

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.